| pubmed-article:10049057 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:10049057 | lifeskim:mentions | umls-concept:C0008059 | lld:lifeskim |
| pubmed-article:10049057 | lifeskim:mentions | umls-concept:C0034678 | lld:lifeskim |
| pubmed-article:10049057 | lifeskim:mentions | umls-concept:C0349639 | lld:lifeskim |
| pubmed-article:10049057 | lifeskim:mentions | umls-concept:C0026882 | lld:lifeskim |
| pubmed-article:10049057 | lifeskim:mentions | umls-concept:C1880109 | lld:lifeskim |
| pubmed-article:10049057 | pubmed:issue | 1 | lld:pubmed |
| pubmed-article:10049057 | pubmed:dateCreated | 1999-2-25 | lld:pubmed |
| pubmed-article:10049057 | pubmed:abstractText | Juvenile myelomonocytic leukemia (JMML) is a malignant hematopoietic disorder of early childhood with excessive proliferation of the myeloid and monocytic lineage. Deregulation of the RAS signal transduction pathway is thought to play a key role in its pathogenesis. We examined peripheral blood or bone marrow cells of 36 children with JMML for activating point mutations in codons 12, 13 and 61 of the NRAS and KRAS proto-oncogenes by allele-specific restriction assay, single-strand conformation polymorphism and/or direct sequencing. Codons 12, 13 and 61 of HRAS were examined in 26 of these patients. We detected RAS mutations in six cases (17%) located at N12 (n = 2), N13 (n = 3) and K13 (n = 1). In addition, we performed clonality studies on different cell lineages in four of these patients applying the RAS mutation, the karyotype and X-chromosome inactivation patterns as clonal markers. Erythroid cells carried mutant RAS, indicating clonal origin. In EBV B cell lines, one of three patients studied harbored a RAS mutation, while the other two patients had polyclonal B cells with wild-type RAS. T lymphocytes were examined in one patient; they were polyclonal and had wild-type RAS. It is likely that JMML is a heterogeneous disease with respect to clonal involvement of different lineages. | lld:pubmed |
| pubmed-article:10049057 | pubmed:language | eng | lld:pubmed |
| pubmed-article:10049057 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:10049057 | pubmed:citationSubset | IM | lld:pubmed |
| pubmed-article:10049057 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
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| pubmed-article:10049057 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:10049057 | pubmed:month | Jan | lld:pubmed |
| pubmed-article:10049057 | pubmed:issn | 0887-6924 | lld:pubmed |
| pubmed-article:10049057 | pubmed:author | pubmed-author:BiondiAA | lld:pubmed |
| pubmed-article:10049057 | pubmed:author | pubmed-author:CorraoAA | lld:pubmed |
| pubmed-article:10049057 | pubmed:author | pubmed-author:AricòMM | lld:pubmed |
| pubmed-article:10049057 | pubmed:author | pubmed-author:HasleHH | lld:pubmed |
| pubmed-article:10049057 | pubmed:author | pubmed-author:NiemeyerC MCM | lld:pubmed |
| pubmed-article:10049057 | pubmed:author | pubmed-author:SchmahlGG | lld:pubmed |
| pubmed-article:10049057 | pubmed:author | pubmed-author:RitterbachJJ | lld:pubmed |
| pubmed-article:10049057 | pubmed:author | pubmed-author:Mach-PascualS... | lld:pubmed |
| pubmed-article:10049057 | pubmed:author | pubmed-author:ValcamonicaSS | lld:pubmed |
| pubmed-article:10049057 | pubmed:author | pubmed-author:FlothoCC | lld:pubmed |
| pubmed-article:10049057 | pubmed:issnType | Print | lld:pubmed |
| pubmed-article:10049057 | pubmed:volume | 13 | lld:pubmed |
| pubmed-article:10049057 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:10049057 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:10049057 | pubmed:pagination | 32-7 | lld:pubmed |
| pubmed-article:10049057 | pubmed:dateRevised | 2006-11-15 | lld:pubmed |
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| pubmed-article:10049057 | pubmed:meshHeading | pubmed-meshheading:10049057... | lld:pubmed |
| pubmed-article:10049057 | pubmed:year | 1999 | lld:pubmed |
| pubmed-article:10049057 | pubmed:articleTitle | RAS mutations and clonality analysis in children with juvenile myelomonocytic leukemia (JMML). | lld:pubmed |
| pubmed-article:10049057 | pubmed:affiliation | Children's Hospital, University of Freiburg, Germany. | lld:pubmed |
| pubmed-article:10049057 | pubmed:publicationType | Journal Article | lld:pubmed |
| pubmed-article:10049057 | pubmed:publicationType | Research Support, Non-U.S. Gov't | lld:pubmed |
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